Ealph k



(Model.)

R. K. NIGHGLS.

GULTIVATOR.

N0. 289,127. Patented Nov. 27, 1888.

fy f dihvrrnn STAT-ns trice.

RALPH mincnons, or Lownn LAK-n, onLironnrn.

CULTIVATOR.

SPECIFICATION fernng citizen of the United States of America, re-

siding at Lower Lake, i'n the county of Lake and State-of California,have invented certain new and useful Improvements in XVheetCultivators,of which the'followingis a specifica tion, reference being had thereinto the ac? vents its burying behind, helps in holding it e upon aside-hill, and greatly facilitates the operation of the machine; and itconsists in the details of construction particularly described below. yl

In the accompanying drawings, which illustrate the construct-ion andoperation of my invention, Figure 1 is a plan view of my cultivator.Fig. 2 lis a view in cross-section across the line 2 2 of Fig. l, andFig. 3 shows my method of attaching the tooth of the cultivator to theshank.

A is the iron bed of the cultiva-tor, which consists ofthe beams B B B2B, forked at one extremity to receive the shanks of the teeth, and atthe other extremity bolted rigidly to the axle Q of the wheels D D. Twocross- 'bars, E E', are securely bolted to the notched ends of the beamsB B", Src., the one above, the other below, the beams. The uppercrossbar, E, is bowed in the center between beams B and B2, and bothupper and lower beams,

E and E, are provided with an aperture to receive the standard F of theswivel-wheel G,

which is secured `in any desirable manner.

The swivel-wheel G is left free to turn in anyi direction. The curvedShanks or drag-bars 1TH H2, 85o., ofthe teeth are set in ,and out lto'prevent clogging, `and are pivoted independently of each otherin thenotches of and between the beams B B', &c., by the-round rod I, whichthus fastens them to' the bed of the machine. .The teeth K, which may beeither chisel or bull tonguedfas desired, are secured to the shanks bytwo bolts, and are reversible, so that when one edge has been worn outthe tooth may be revolved, again secured in place, and a new edge thusobtainedl I for use.

l' which project at a right angle to the rod. Rod

part of Letters Patent No. 289,127, vdated November 2'?, 1.853.

Appnmaon inea .mi so, ists. (Model.)

The shanks H H', are connect ed together and 'held in their relativepositions with respect t0 each other by the crossbrace L, to which theyare attached by a sta-` ple, plate, and bolt, Lf. They may also befastenedvin any other suitable manner.

The device for lifting and lowering the teeth is as follows: Twostandards, M M', are firmly secured, each to a shank of the cultivator,at a suitable distance fronieaohother. Links N A N" connect the upperextremity of the standards M M to the arms O O' of the rod P,

P is pivoted through lugs Q Q on thevbeams 5 B B2 of the bed,`aud oneofthe arms, O', is prolonged into a lever-handle, by which rod P can becaused to revolve and lift or depress the teeth of the cultivator bymeans of its rigid connections through arms O O', links N N', andstandards M M. A nib, R, on lever O fits into square notches intheratchet S, so as to hold the lever firmly in whatever position it maybe placed. The notches in the 7 ratchet are made square and at a givendistance from each other in order to hold the cultivateur-teeth in theground, to regulate the depth at which the ground is to be cultivated,and to hold the teeth out when not in use.

The ratchet S is firmly bolted to the bed A aud to the axle C of themachine at one side of the drivers seat T.

U U are the clips in front of axle C, to which the ordinary wagon-tongueof the cul- 8 tvator is attached.

The advantages presented by the foregoing construction consist in thegreat steadiness ot' the cultivator on aside-hillfand the increasedfacilityA with which it may be turned, both owing to the presence of theswivel-wheel, whereby it is rendered particularly available for thecultivation of vineyards, the proximity ofthe teeth to the horses, whichavoids any waste of power in drawing, and the simplicity 95 of thelifting device.

.The drawings show a cultivator to be used with four horses. Six horsesshould be used with acultivator of ten teeth and two horses with one offour. Y

What l claim as new, and desire to sec-ure by Letters Patent, is-

- l. In a two-wheeled cultivator, the combination,with the two frontwheels, of a central IOO .other by the er0ssbar L, and the shaft I,

substantially as hereinbefore set forth.

3. In a two-Wheeled eultivator, the combination,with the axle, of thecnltiVator-bed, as shown and described, the shaft I, passing through theforked beams and the shovel-bars,

the rigid arms M, connecting-rods N, the lever, and rook-shaft havingarm O', andthe bar L, substantially as hereinbefore set forth.

In testimony whereof I affix my signature,in presence of two Witnesses,this 5th day of July, 1883.

RALPH K. NICHOLS.

Vitn'esses:

GEO. B. Fox, `lvIoRRIs LEVY.:

